Thanks a lot! Your suggestion helps. I'll look if there is any place where double insertion/extraction is taking place.
On Thu, Feb 25, 2021 at 8:57 PM Sebastian Huber < sebastian.hu...@embedded-brains.de> wrote: > On 25/02/2021 10:47, Richi Dubey wrote: > > > Hi, > > > > When I am debugging the call to _Chain_Append_unprotected (from line > > 92 > > <https://git.rtems.org/rtems/tree/testsuites/sptests/sp02/init.c#n92> of > > > sp02, rtems_task_delete -> _Thread_Close ->...->_Thread_Cancel -> ... > > ->_Scheduler_Unblock -> ... _Scheduler_strong_APA_Insert_ready > > -> _Chain_Append_unprotected), I see a weird chain behavior where > > there's some kind of cycle: > > > > (gdb) p _Chain_Tail(the_chain) > > $20 = (Chain_Node *) 0x200768 > > <_Configuration_Scheduler_strong_APA_dflt+40> > > (gdb) p _Chain_Tail(the_chain)->previous > > $21 = (Chain_Node *) 0x2014e8 <_RTEMS_tasks_Objects+2024> > > (gdb) p (_Chain_Tail(the_chain)->previous)->previous > > $22 = (Chain_Node *) 0x200fe0 <_RTEMS_tasks_Objects+736> > > (gdb) p ((_Chain_Tail(the_chain)->previous)->previous)->previous > > $23 = (Chain_Node *) 0x2014e8 <_RTEMS_tasks_Objects+2024> > > (gdb) p > > (((_Chain_Tail(the_chain)->previous)->previous)->previous)->previous > > $24 = (Chain_Node *) 0x200fe0 <_RTEMS_tasks_Objects+736> > > > > > > sp02 is a single processor test and I am trying to run it on the > > Strong APA SMP scheduler. Can someone please give an insight into what > > might be causing this? The Strong APA scheduler does not affect the > > functioning of the chain, it only uses the chain using standard > > function headers defined in chain.h > Cycles in a chain may be caused by double insertions or extractions. I > would enable RTEMS_DEBUG since it adds assertions for these cases. > > -- > embedded brains GmbH > Herr Sebastian HUBER > Dornierstr. 4 > 82178 Puchheim > Germany > email: sebastian.hu...@embedded-brains.de > phone: +49-89-18 94 741 - 16 > fax: +49-89-18 94 741 - 08 > > Registergericht: Amtsgericht München > Registernummer: HRB 157899 > Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler > Unsere Datenschutzerklärung finden Sie hier: > https://embedded-brains.de/datenschutzerklaerung/ > >
_______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
